Vilas County, Wisconsin
UW43
1593400
538.57
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Lost Lake was evaluated in 2014, 2016, 2020, and 2022; phosphorus and algae samples were ambiguous, and more samples should be taken. Aquatic plant communities in Lost Lake were evaluated in the 2022 and 2024 cycles and were in good condition. In 2026, excess algal growth was documented, impairing recreation on this water, and it was placed on the Impaired Waters List. Pollutant
Unknown Pollutant
Listed For
Recreation
Impairments
Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
Proposed for List
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2026-49
Listing Date
4/1/2026